34 user 11 critic

An Obol for Charon 

A mysterious sphere threatens the U.S.S. Discovery even as May, in her original form, implements a plan that puts Tilly's life in danger. Saru and Burnham's bond grows when Saru is forced ... See full summary »


Lee Rose


Gene Roddenberry (based upon "Star Trek" created by), Bryan Fuller (created by) | 8 more credits »




Episode cast overview, first billed only:
Sonequa Martin-Green ... Michael Burnham
Doug Jones ... Saru
Anthony Rapp ... Paul Stamets
Mary Wiseman ... Sylvia Tilly
Anson Mount ... Captain Christopher Pike
Tig Notaro ... Jett Reno
Rebecca Romijn ... Number One
Rachael Ancheril ... Cmdr. Nhan
Bahia Watson ... May
Hannah Cheesman ... Lt. Cmdr. Airiam
Emily Coutts ... Lt. Keyla Detmer
Patrick Kwok-Choon ... Lt. Gen Rhys
Oyin Oladejo ... Lt. Joann Owosekun
Ronnie Rowe ... Lt. R.A. Bryce (as Ronnie Rowe Jr.)
Julianne Grossman ... Discovery Computer (voice)


A mysterious sphere threatens the U.S.S. Discovery even as May, in her original form, implements a plan that puts Tilly's life in danger. Saru and Burnham's bond grows when Saru is forced to acknowledge a deeply unsettling Kelpien truth. Pike receives new intel on Spock from a loyal friend.

Plot Summary | Add Synopsis


TV-PG | See all certifications »






Release Date:

7 February 2019 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby Digital (5.1)| Dolby Digital



Aspect Ratio:

2.35 : 1
See full technical specs »

Did You Know?


When Captain Pike and Number One are conversing near the replicators, one of the replicator units is labeled A-113. A-113 is an inside joke, an Easter egg in media created by alumni of California Institute of the Arts, referring to the classroom used by graphic design and character animation students including John Lasseter, Tim Burton and Brad Bird. See more »


When the Universal Translator goes offline, the crew are speaking in different languages. You can see their mouths moving properly with the language they are speaking. Everyone's lips should have been moving to their native language as we hear a different language. This is an error that has occurred throughout Star Trek shows and movies except Star Trek: Beyond where the alien that directed the Enterprise to the planet spoke in her native language but the translator in her collar translated for her. See more »


Saru: My apologies. I woke up this morning fighting an acute rhinovirus.
Lt. Joann Owosekun: So you have a cold.
Linus: I had a cold last week, which sucked.
[everyone looks at him questioningly]
Linus: Saurian. Six nasal canals.
See more »


References Star Trek: Short Treks: The Brightest Star (2018) See more »

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User Reviews

Interesting chapter with many flaws
10 February 2019 | by Sermell_SinoSee all my reviews

This episode has continued the old-school Star Trek style that old school trekkies love so much. The storylines are exploration-based, requiring a lot of active thinking on the audience's part. The general direction is commendable. That said, I didn't like this episode particularly much. First of all, there are so many subplots on move at once, so it may confuse the viewers a bit. The show tried to be faithful to old trek, but the old trek does not present everything in a rush. Can be improved. Most importantly, I am getting tired of Sonequa's acting style. Recently, I feel like whenever she is trying to show strong emotions, she speaks in a slow,over-stressed tone that sounds not unlike giving a public speech to strangers or a students. She tries so hard to be moving and it feels extremely unnatural. In the last episode, when she addresses Tilly's problem, it really freaked me out: Why would you talk that way with your close friend? I don't know why didn't I notice this problem last season, probably because it didn't happen. Oh Martin-Green, please stop giving us more of your artificial emotions. Despite all this, this episode is very interesting and solves some continuity issues. My vote is seven.

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